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Gst turbo upgrade

3K views 16 replies 11 participants last post by  1997GS-T  
#1 ·
I have a 97 GSt and I plan to get a new turbo here within the month. My question to all of you is, since I only have a fwd car what will be the turbo for me. I was thinking of the FP big 28 since it is a direct bolt on. I drive the car daily everywhere so I want a turbo that will be fine to drive all over hell. I'm looking to maybe get around 400 hp or 12.5 on pump gas if possible. Thats all I want I will be more than happy to be even close to that.
Performance:
Injen intake system
boost control solenoid removal
Autometer boost/vacuum gauge
Magnecor 8.5mm race plug wire set
NGK BPR7ES spark plugs
1G blow off valve
Brode upper Intercooler pipe
Joe P. manual boost controller
Thermal cat back exhaust
Autometer air/fuel ratio gauge
2.5"dnpipe and test
s-afc
pocketlogger
apexi gtr fmic
 
#14 ·
400hp in your car on pump gas is going to be nearly impossible. I would say go with the Big 28. However, you must consider that you may have some traction problems with its quick spool up time. Also plan on getting fuel modifications.
 
#16 ·
The problem with FWD's and small turbo's (big16g's and smaller) is that they spool too fast, which is why you get bad wheelspin. I have talked to a few people with FWD's that have had these turbo's and upgraded to 20g's and larger and said that the lag helped them control wheelspin substantially. Sounds like a little turbo lag is a good thing for us FWD people. I have some traction isues with a big16g, but its a great turbo on the highway where I am most of the time.:santa: It's not going to get you even close to 400whp though. You definately need one of the big boys for that.
 
#17 ·
I would have to go with the Big 16G. Less traction problems for a FWD than a T-28, cheaper and more top end power. If your are going to upgrade to a 20G later, if you have the Big 16G installed, it is easier to upgrade. A big 16G can be upgraded to a 20G.